Michigan Wolverines Head Football Coach Jim Harbaugh watches the replay during the fourth quarter of the game against the Michigan State Spartans at Michigan Stadium on November 16, 2019 in Ann Arbor, Michigan. Michigan defeated Michigan State 40-10. (Photo by Leon Halip/Getty Images)ANN ARBOR, Mich. – Jim Harbaugh has officially signed a contract extension to remain Michigan’s head football coach through the 2025 season. Michigan went just 2-4, including losses to Michigan State and then-winless Penn State at home. He was fired last month and has since joined former Michigan offensive coordinator and new Arizona head coach Jedd Fisch’s staff.